Displaying Phase Noise Parameters

How to select and configure Measurement Parameters

Using Hardkey/SoftTab/Softkey

Using a mouse

1. Press Trace > Trace Setup >  Measure....

2. Select a parameter.

1. Click Instrument.

2. Select Trace.

3. Select Measure....

4. Select a parameter

Measure Dialog help

PN - Integrated phase noise measured

AM - Amplitude modulation measured.  This parameter measures the percentage of the modulation of the carrier.

PM+AM - Sum of Integrated phase noise and  Amplitude modulation

L(f) - Single sideband phase noise (same as PN), dBc/Hz

Sphi(f) - Spectral density of phase fluctuation, dB/Hz

Sv(f) - Square root of Spectral density of frequency fluctuations, Hz/sqrt(Hz)

Sy(f) - Square root of Spectral density of fractional frequency fluctuations, 1/sqrt(Hz)

AVAR - Allan Variance

ADEV - Allan Deviation

Note: The input receiver number can be changed using the RF Path tab

New Trace - Add a new trace.

Channel N - Select a channel number for the new modulation distortion trace.

Window N - Select to create the new trace in an existing window or new window.

Select All - Select all measurement parameters.

Measured Side Band of Offset> 30 MHz in AM+PM

In PM+AM composite measurement, SSA-X measures Lower Side Band (LSB) and Upper Side Band (USB) for Offset > 30 MHz. The following table shows which side band is measured.

The selected Side Band (LSB or USB) is dumped by csv file save (Save/Recall > Save Other > Save Data..., then select file type: trace and phase noise parameter)

The E5055A measures USB for all carrier frequency